英文名 | 3,5-dihydroxy-2-methylpyran-4-one |
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英文别名 |
5-Hydroxymaltol
3,5-dihydroxy-2-methyl-pyran-4-one 3,5-Dihydroxy-2-methyl-4H-pyran-4-one 5-oxymaltol 4H-Pyran-4-one,3,5-dihydroxy-2-methyl 2-methyl-3,5-dihydroxy-4H-pyran-4-one 3,5-Dihydroxy-2-methyl-4-pyrone |
密度 | 1.605g/cm3 |
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沸点 | 346.2ºC at 760 mmHg |
分子式 | C6H6O4 |
分子量 | 142.10900 |
闪点 | 154.5ºC |
精确质量 | 142.02700 |
PSA | 70.67000 |
LogP | 0.35940 |
蒸汽压 | 3.66E-06mmHg at 25°C |
折射率 | 1.639 |
分子结构 | 1、 摩尔折射率:31.87 2、 摩尔体积(cm3/mol):88.5 3、 等张比容(90.2K):264.2 4、 表面张力(dyne/cm):79.3 5、 极化率(10-24cm3):12.63 |
计算化学 | 1.疏水参数计算参考值(XlogP):0.2 2.氢键供体数量:2 3.氢键受体数量:4 4.可旋转化学键数量:0 5.互变异构体数量:12 6.拓扑分子极性表面积66.8 7.重原子数量:10 8.表面电荷:0 9.复杂度:236 10.同位素原子数量:0 11.确定原子立构中心数量:0 12.不确定原子立构中心数量:0 13.确定化学键立构中心数量:0 14.不确定化学键立构中心数量:0 15.共价键单元数量:1 |
海关编码 | 2932999099 |
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~41% 1073-96-7 |
文献:Takao, Hisashi; Endo, Yoshinori; Horie, Tokunaru Heterocycles, 1992 , vol. 34, # 9 p. 1803 - 1812 |
~% 1073-96-7 |
文献:Cutzach, Isabelle; Chatonnet, Pascal; Henry, Robert; Dubourdieu, Denis Journal of Agricultural and Food Chemistry, 1999 , vol. 47, # 4 p. 1663 - 1667 |
~% 1073-96-7 |
文献:Takao, Hisashi; Endo, Yoshinori; Horie, Tokunaru Heterocycles, 1992 , vol. 34, # 9 p. 1803 - 1812 |
~% 1073-96-7
详细
|
文献:Bristow, Mark; Isaacs, Neil S. Journal of the Chemical Society. Perkin Transactions 2, 1999 , # 10 p. 2213 - 2218 |
~% 1073-96-7 |
文献:Kosuge; Tsuji; Nukaya; et al. Agricultural and Biological Chemistry, 1983 , vol. 47, # 4 p. 881 - 883 |
~% 1073-96-7
详细
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文献:Kim, Myong-Ock; Baltes, Werner Journal of Agricultural and Food Chemistry, 1996 , vol. 44, # 1 p. 282 - 289 |
~%
详细
|
文献:Hayase, Fumikata; Kim, Bong Seon; Kato, Hiromichi Agricultural and Biological Chemistry, 1985 , vol. 49, # 8 p. 2337 - 2342 |
上游产品 5 | |
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下游产品 0 |
海关编码 | 2932999099 |
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中文概述 | 2932999099. 其他仅含氧杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0% |
申报要素 | 品名, 成分含量, 用途 |
Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |